Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / ControlIdConverter.cs / 1 / ControlIdConverter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System.Collections; using System.ComponentModel; using System.ComponentModel.Design; using System.Globalization; using System.Reflection; using System.Web.Util; using System.Security.Permissions; ////// TypeConverter for ControlParameter's ControlID property. /// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class ControlIDConverter : StringConverter { ////// protected virtual bool FilterControl(Control control) { return true; } ///Determines whether a given control should have its id added to the StandardValuesCollection. ////// Returns a list of all control IDs in the container. /// private string[] GetControls(IDesignerHost host, object instance) { IContainer container = host.Container; // Locate nearest container IComponent component = instance as IComponent; if (component != null && component.Site != null) { container = component.Site.Container; } if (container == null) { return null; } ComponentCollection allComponents = container.Components; ArrayList array = new ArrayList(); // For each control in the container foreach (IComponent comp in (IEnumerable)allComponents) { Control control = comp as Control; // Ignore DesignerHost.RootComponent (Page or UserControl), controls that don't have ID's, // and the Control itself if (control != null && control != instance && control != host.RootComponent && control.ID != null && control.ID.Length > 0 && FilterControl(control)) { array.Add(control.ID); } } array.Sort(Comparer.Default); return (string[])array.ToArray(typeof(string)); } ////// Returns a collection of standard values retrieved from the context specified /// by the specified type descriptor. /// public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) { if (context == null) { return null; } IDesignerHost host = (IDesignerHost)context.GetService(typeof(IDesignerHost)); Debug.Assert(host != null, "Unable to get IDesignerHost in ControlIDConverter"); if (host != null) { string[] controlIDs = GetControls(host, context.Instance); if (controlIDs == null) { return null; } return new StandardValuesCollection(controlIDs); } return null; } ////// Gets whether or not the context specified contains exclusive standard values. /// public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) { return false; } ////// Gets whether or not the specified context contains supported standard values. /// public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { return (context != null); } } }
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SqlConnectionString.cs
- CommonDialog.cs
- TypeDescriptorContext.cs
- XXXOnTypeBuilderInstantiation.cs
- DetailsViewPageEventArgs.cs
- PositiveTimeSpanValidator.cs
- WebBrowserContainer.cs
- DrawingImage.cs
- DataGridViewToolTip.cs
- MultiPageTextView.cs
- EntryWrittenEventArgs.cs
- WriteableBitmap.cs
- SafeHandles.cs
- XmlSerializationWriter.cs
- FileLoadException.cs
- ObjectStateEntryDbDataRecord.cs
- AccessViolationException.cs
- CompiledRegexRunner.cs
- Hashtable.cs
- GlobalAllocSafeHandle.cs
- TransformerInfo.cs
- DataGridViewCell.cs
- MappingItemCollection.cs
- assemblycache.cs
- StylusEventArgs.cs
- BamlCollectionHolder.cs
- TextServicesContext.cs
- DateTimeConstantAttribute.cs
- Pens.cs
- nulltextcontainer.cs
- querybuilder.cs
- PointHitTestResult.cs
- BindingNavigator.cs
- BehaviorEditorPart.cs
- LicenseManager.cs
- CollectionConverter.cs
- Boolean.cs
- MembershipValidatePasswordEventArgs.cs
- MarginsConverter.cs
- XslVisitor.cs
- ProcessThreadDesigner.cs
- HelpEvent.cs
- TranslateTransform3D.cs
- SafeNativeMethods.cs
- Point4D.cs
- DiagnosticsElement.cs
- HiddenFieldPageStatePersister.cs
- SymbolEqualComparer.cs
- AsyncOperationManager.cs
- TypeUnloadedException.cs
- KeyBinding.cs
- WebPartZone.cs
- TextBox.cs
- BlurEffect.cs
- ZoneButton.cs
- NavigateUrlConverter.cs
- TransactionBridge.cs
- BrowserCapabilitiesFactory.cs
- InstanceKey.cs
- ClickablePoint.cs
- ToolStripDropDownButton.cs
- DataGridPageChangedEventArgs.cs
- Pair.cs
- EncoderParameter.cs
- WebPartTracker.cs
- Emitter.cs
- FieldNameLookup.cs
- StringComparer.cs
- ViewEvent.cs
- ClientBuildManagerCallback.cs
- SvcMapFile.cs
- RectangleConverter.cs
- wmiprovider.cs
- ConstraintManager.cs
- TraceUtility.cs
- WrappedOptions.cs
- ObjectConverter.cs
- HeaderedItemsControl.cs
- TextLine.cs
- RectIndependentAnimationStorage.cs
- RtType.cs
- MembershipSection.cs
- StorageInfo.cs
- ViewCellSlot.cs
- ResourcesGenerator.cs
- BasicHttpMessageSecurityElement.cs
- IxmlLineInfo.cs
- AsyncPostBackErrorEventArgs.cs
- RelationshipWrapper.cs
- ObjectDataSourceWizardForm.cs
- DataGrid.cs
- BooleanFunctions.cs
- XMLSyntaxException.cs
- HttpWebResponse.cs
- StateBag.cs
- MetabaseSettingsIis7.cs
- ObsoleteAttribute.cs
- Main.cs
- Aggregates.cs
- ResourcePool.cs